Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...288...14a&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 288, Jan. 1, 1985, p. 14-21. NASA-supported research.
Astronomy and Astrophysics
Astrophysics
15
Background Radiation, Cosmology, Gravitational Waves, Inhomogeneity, Linear Polarization, Plane Waves, Wave Equations, Wave Propagation
Scientific paper
This is the second in a series of papers whose purpose is to investigate the possible strength of a cosmic background of gravitational radiation. The authors present a metric which may be used to describe exact plane gravitational waves propagating over a homogeneous background spacetime, and they find solutions representing waves of linear polarization over backgrounds of Bianchi types I, III, V, and VI, as well as over a background with a smooth global inhomogeneity. In all these cases an inhomogeneity in the structure of the initial cosmic singularity evolves into gravitational waves propagating over a homogeneous background spacetime.
Adams Paul J.
Hellings Ronald W.
Zimmerman Robert L.
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